561600555 has 8 divisors (see below), whose sum is σ = 898560912. Its totient is φ = 299520288.

The previous prime is 561600553. The next prime is 561600581. The reversal of 561600555 is 555006165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 561600555 - 2¹ = 561600553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561600551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18720004 + ... + 18720033.

It is an arithmetic number, because the mean of its divisors is an integer number (112320114).

Almost surely, 2^561600555 is an apocalyptic number.

561600555 is a deficient number, since it is larger than the sum of its proper divisors (336960357).

561600555 is a wasteful number, since it uses less digits than its factorization.

561600555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37440045.

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 561600555 is about 23698.1128995538. The cubic root of 561600555 is about 825.0415920262.

The spelling of 561600555 in words is "five hundred sixty-one million, six hundred thousand, five hundred fifty-five".